macOS 11.x < 11.6.6 Multiple Vulnerabilities (HT213256)

critical Nessus Plugin ID 161395


The remote host is missing a macOS security update.


The remote host is running a version of macOS / Mac OS X that is 11.x prior to 11.6.6 Big Sur. It is, therefore, affected by multiple vulnerabilities including the following:

- A logic issue in AppKit that may allow a malicious application to gain root privileges. (CVE-2022-22665)

- A logic issue in Apache HTTP Server where it fails to close an inbound connection when errors are encountered discarding the request body, exposing the server to HTTP Request Smuggling. (CVE-2022-22720)

- A buffer overflow issue in the mod_lua component of Apache HTTP Server. (CVE-2021-44790)

Note that Nessus has not tested for this issue but has instead relied only on the operating system's self-reported version number.


Upgrade to macOS 11.6.6 or later.

See Also

Plugin Details

Severity: Critical

ID: 161395

File Name: macos_HT213256.nasl

Version: 1.6

Type: local

Agent: macosx

Published: 5/20/2022

Updated: 12/15/2022

Supported Sensors: Nessus Agent

Risk Information


Risk Factor: High

Score: 8.4


Risk Factor: High

Base Score: 9.3

Temporal Score: 8.1

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2022-26770


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

CVSS Score Source: CVE-2022-26776

Vulnerability Information

CPE: cpe:/o:apple:mac_os_x, cpe:/o:apple:macos

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/16/2022

Vulnerability Publication Date: 5/16/2022

CISA Known Exploited Vulnerability Due Dates: 4/25/2022

Reference Information

CVE: CVE-2018-25032, CVE-2021-4136, CVE-2021-4166, CVE-2021-4173, CVE-2021-4187, CVE-2021-4192, CVE-2021-4193, CVE-2021-44224, CVE-2021-44790, CVE-2021-45444, CVE-2021-46059, CVE-2022-0128, CVE-2022-0530, CVE-2022-0778, CVE-2022-22589, CVE-2022-22663, CVE-2022-22665, CVE-2022-22674, CVE-2022-22675, CVE-2022-22719, CVE-2022-22720, CVE-2022-22721, CVE-2022-23308, CVE-2022-26697, CVE-2022-26698, CVE-2022-26706, CVE-2022-26712, CVE-2022-26714, CVE-2022-26715, CVE-2022-26718, CVE-2022-26720, CVE-2022-26721, CVE-2022-26722, CVE-2022-26723, CVE-2022-26726, CVE-2022-26728, CVE-2022-26745, CVE-2022-26746, CVE-2022-26748, CVE-2022-26751, CVE-2022-26755, CVE-2022-26756, CVE-2022-26757, CVE-2022-26761, CVE-2022-26763, CVE-2022-26766, CVE-2022-26767, CVE-2022-26768, CVE-2022-26769, CVE-2022-26770, CVE-2022-26776

APPLE-SA: HT213256

IAVA: 2022-A-0212-S, 2022-A-0442-S